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Finding the Third Proportional to 165,350 and 358,888

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Solution

The third proportional to 165,350 and 358,888 is: 778,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,350 : 358,888 = 358,888 : x
  2. Step 2: Convert to fraction form
    165,350/358,888 = 358,888/x
  3. Step 3: Cross multiply
    165,350x = 358,888 × 358,888
  4. Step 4: Simplify right side
    165,350x = 128,800,596,544
  5. Step 5: Solve for x
    x = 128,800,596,544/165,350
  6. Step 6: Final answer
    x = 778,957.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.